Kathy Kaehler

Kathy Kaehler is a fitness expert, celebrity personal trainer, and author known for working with high-profile clients such as Julia Roberts, Michelle Pfeiffer, Cindy Crawford, Jennifer Aniston, and Jennifer Lopez. She has written books including "Teenage Fitness," "Fit and Sexy For Life," "Kaehler's Celebrity Workouts," and "Momenergy," and has also appeared as a fitness expert on NBC's Today show.